66049535 has 8 divisors (see below), whose sum is σ = 79303536. Its totient is φ = 52810240.

The previous prime is 66049513. The next prime is 66049547. The reversal of 66049535 is 53594066.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 66049535 - 2¹⁰ = 66048511 is a prime.

It is a super-4 number, since 4×66049535⁴ (a number of 32 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13580 + ... + 17790.

It is an arithmetic number, because the mean of its divisors is an integer number (9912942).

Almost surely, 2^66049535 is an apocalyptic number.

66049535 is a deficient number, since it is larger than the sum of its proper divisors (13254001).

66049535 is a wasteful number, since it uses less digits than its factorization.

66049535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7353.

The product of its (nonzero) digits is 97200, while the sum is 38.

The square root of 66049535 is about 8127.0865013238. The cubic root of 66049535 is about 404.2250792159.

The spelling of 66049535 in words is "sixty-six million, forty-nine thousand, five hundred thirty-five".